compound-dev

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📄 SKILL.md 26.4 KB
SKILL.md

---
name: compound-dev
description: >-
  Make Claude Code sessions compound — every session builds on the last
  instead of starting from scratch. Implements Karpathy's LLM Wiki pattern
  for software engineering. Use this skill when starting a new project,
  onboarding to an existing codebase, or any time the user says "set up my
  project", "add project memory", "create CLAUDE.md", "help me structure
  this project", "I keep re-explaining things to Claude", "my sessions
  don't remember anything", "ingest this document", or "run a health check".
  Also trigger when the user asks about session efficiency, token usage, or
  wants to improve their Claude Code workflow. This skill creates and
  maintains a three-layer knowledge system — raw sources, an interlinked
  wiki, and a schema that governs it all — plus metrics to prove it works.
---

# compound-dev

Make every Claude Code session build on the last one.

Implements Karpathy's [LLM Wiki](https://gist.github.com/karpathy/442a6bf555914893e9891c11519de94f)
pattern for software engineering: raw sources are compiled into a persistent,
interlinked wiki maintained entirely by the LLM. You steer. The LLM writes.
Every session compounds.

---

## The core idea

Most Claude Code sessions work like RAG — the LLM rediscovers your project
from scratch every time. You re-explain the architecture, re-debate decisions,
re-discover patterns. Nothing accumulates.

compound-dev is different. The LLM **incrementally builds and maintains a
persistent wiki** — structured, interlinked markdown files that capture
decisions, patterns, gotchas, entities, people, and concepts. When you start
a session, the LLM reads the wiki and already knows. When you end a session,
new knowledge integrates into the existing wiki — updating entity pages,
noting contradictions, strengthening the synthesis.

**The wiki is a persistent, compounding artifact.** The cross-references are
already there. The contradictions have been flagged. The synthesis reflects
everything you've built. The wiki gets richer with every session.

This is not a wiki for the sake of having a wiki. It's a **context engineering
system.** You're building the exact input your LLM needs to do useful work.
Every meeting note, every linked decision, every filed artifact improves the
quality of every session that follows. The difference between prompting cold
("help me write a design doc") and prompting an LLM that has access to six
months of decisions, three prior design docs, and your notes on the existing
architecture — that difference is the entire value of compound-dev.

---

## Three-layer architecture

Following Karpathy's pattern, compound-dev maintains three layers:

### Layer 1: Raw sources (your project)

Your source code, reference material, design specs, API docs. These are
immutable — the LLM reads from them but the wiki is separate.

### Layer 2: The wiki

LLM-generated, LLM-maintained markdown files. Summaries, entity pages,
concept pages, decision records, an overview, a synthesis. The LLM owns
this layer entirely. You read it; the LLM writes it.

### Layer 3: The schema

CLAUDE.md — tells the LLM how the wiki is structured, what the conventions
are, and what workflows to follow. You and the LLM co-evolve this over
time as you figure out what works.

---

## What this skill produces

### Modularity: pick your level

**Minimal** (5 minutes, immediate value):
```
your-project/
├── CLAUDE.md              ← schema: project identity + session protocol
└── .project-state.md      ← living state, updated every session
```

**Standard** (recommended):
```
your-project/
├── CLAUDE.md
├── .project-state.md
├── .metrics.json           ← session metrics log
└── wiki/
    ├── index.md            ← content-oriented catalog with one-line summaries
    ├── log.md              ← chronological, append-only, parseable
    ├── overview.md          ← living synthesis of the entire project
    ├── decisions/           ← one file per major decision
    ├── concepts/            ← patterns, architectures, approaches
    ├── entities/            ← tools, services, APIs, key components
    ├── people/              ← one file per key person (teammate, stakeholder, mentor)
    └── gotchas/             ← traps and how to avoid them
```

**Full** (for teams and advanced projects):
```
your-project/
├── CLAUDE.md
├── .project-state.md
├── .metrics.json
├── raw/                    ← immutable reference material
│   └── [articles, specs, API docs, design docs]
└── wiki/
    ├── index.md
    ├── log.md
    ├── overview.md
    ├── drafts/              ← trust layer: unreviewed entries
    ├── decisions/
    ├── concepts/
    ├── entities/
    ├── people/
    ├── daily/               ← dated session/meeting notes, auto-linked to people + entities
    └── gotchas/
```

Tell Claude Code which level:
- `"Set up compound-dev minimal"` — just CLAUDE.md + state
- `"Set up compound-dev"` — standard with wiki/ and metrics
- `"Set up compound-dev full"` — everything including raw/ and trust layer

### Trust model (full level)

New wiki entries go to `wiki/drafts/` first. They become "live" only after
human review via the `review drafts` command. This prevents hallucinated
or low-quality entries from corrupting the knowledge base.

For solo developers who trust their sessions, auto-promote can be enabled
in CLAUDE.md.

---

## Operations

### Ingest

There are three ways to add knowledge to the wiki:

**Manual ingest** — add a specific source. Tell Claude Code:
**"Ingest this into the wiki."**

Claude Code will:
1. Read the source material
2. Discuss key takeaways with you
3. Write a summary page in wiki/
4. Update wiki/index.md
5. Update relevant entity, concept, and people pages across the wiki
6. Add cross-references and backlinks
7. Note any contradictions with existing wiki content
8. Append to wiki/log.md

A single source might touch 5-10 wiki pages. This is the compounding
mechanism — new knowledge integrates with existing knowledge, not just
piles up next to it.

**Spider ingest** — start from one document and pull in everything related.
Tell Claude Code: **"Spider from this doc and pull in all related context."**

Claude Code will follow links, references, and mentions outward from the
starting document — grabbing related files, linked resources, referenced
docs — and ingest each one. This is how a single design spec can pull in
the Slack thread where the approach was debated, the prior design doc it
replaced, and the API docs it references. The output is better because the
LLM is working with the real history, not your summary of it.

**Meeting capture** (full level with daily/) — after a meeting or 1:1,
tell Claude Code: **"Create a meeting note for today."**

Claude Code will:
1. Create a dated note in wiki/daily/YYYY-MM-DD/
2. Link it to the relevant people in wiki/people/
3. Link it to the relevant projects and entities
4. Over time, each person's page becomes a timeline of every conversation,
   decision, and open thread with them

This is the pattern that makes compound-dev work for teams: after months,
you can ask "what have I discussed with [person] about [project]?" and
get a complete answer because every interaction was captured and linked.

### Session (automatic)

Every session follows a built-in protocol:

**Start:**
1. Read CLAUDE.md (schema)
2. Read .project-state.md (current state)
3. Read wiki/index.md (what's in the wiki)
4. Run `git log --oneline -5` (recent history)
5. Confirm understanding before proceeding

**During work:**
- Reference relevant wiki pages when prior decisions or patterns apply
- Note new decisions, patterns, or gotchas as they emerge

**End (auto-checkpoint):**
1. Update .project-state.md
2. Add new wiki entries (to drafts/ if full level, direct if standard)
3. Update wiki/index.md
4. Append to wiki/log.md
5. Append objective metrics to .metrics.json
6. Commit: `docs: auto-checkpoint [date]`

The session-end runs **automatically** — Claude Code detects when a session
is ending and commits without asking permission.

### Query

Ask questions against the wiki. Claude Code reads wiki/index.md, finds
relevant pages, reads them, and synthesizes an answer.

Important: **good answers can be filed back into the wiki.** A comparison
you asked for, an analysis, a connection you discovered — these shouldn't
disappear into chat history. Tell Claude Code: "File this into the wiki."

### Lint (health check)

Tell Claude Code: **"Run a health check"** or **"Lint the wiki"**

Claude Code checks:

**Knowledge quality (from Karpathy's pattern):**
- Contradictions between wiki pages
- Stale claims superseded by newer information
- Orphan pages with no inbound links
- Important concepts mentioned but lacking their own page
- Missing cross-references between related pages
- Data gaps that could be filled with investigation
- Suggestions for new questions to investigate

**Metrics (compound-dev's addition):**
- Cold start rate, context reuse rate, compound ratio
- Docs freshness (stale files)
- Session continuity and token savings estimate

The combined lint is more thorough than either system alone.

```
PROJECT HEALTH — [project name]
Initialized: [date] | Sessions: [count] | Last session: [date]

WIKI QUALITY
  Pages:               [X] total ([X] entities, [X] concepts, [X] decisions,
                                   [X] people, [X] daily notes)
  Cross-references:    [X] links between pages
  Contradictions:      [X] flagged
  Orphan pages:        [X] (no inbound links)
  Stale pages:         [X] (not updated in >2 weeks)
  Suggested topics:    [list concepts mentioned but lacking pages]

EFFICIENCY
  Cold start rate:     [X]% (target: <5%)
  Context reuse:       [X]% (target: >70%)
  Compound ratio:      [X]% (target: >50%)

ESTIMATED SAVINGS
  Total sessions:      [X]
  Tokens saved:        ~[X]K (vs cold-start baseline)
```

If `visual-brief` skill is installed, render as a gap analysis infographic.

---

## Wiki conventions

### Page structure

Every wiki page follows this format:

```markdown
---
created: 2026-04-05
updated: 2026-04-05
sources: [list of raw/ files or sessions that contributed]
tags: [auth, security, api]
---

# Page Title

[Content]

## Related
- [link to related page 1](../concepts/related.md)
- [link to related page 2](../entities/tool.md)
```

### Linking and cross-references

Every wiki page should link to related pages:
- `[see JWT decision](../decisions/auth-jwt.md)` in a concept page
- `[related: caching pattern](../concepts/caching.md)` in a decision page

When updating a page, check: does any existing page reference this topic?
If so, add a backlink.

### Contradiction handling

When new information contradicts an existing wiki page:
- DO NOT silently overwrite
- Add a `## Contradiction` section noting both claims with sources
- Flag in wiki/log.md: `## [date] contradiction | [topic]`
- Surface in next health check

### wiki/overview.md

A living synthesis page. Updated after every ingest and periodically
during lint passes. Contains:
- Project thesis (2-3 sentences)
- Key decisions and their rationale (summary, not full detail)
- Active patterns and their usage frequency
- Known risks and open questions
- Links to the most important wiki pages

This is the page a new team member reads first.

### wiki/people/ pages

One file per key person. Each page accumulates over time:

```markdown
---
created: 2026-04-05
updated: 2026-04-08
role: tech lead
tags: [team, backend, auth]
---

# Alice Chen

Role: Backend tech lead. Primary contact for auth and API design.

## Interactions
- [2026-04-05 standup](../daily/2026-04-05.md) — discussed JWT vs sessions
- [2026-04-08 1:1](../daily/2026-04-08.md) — agreed on rate limiting approach

## Key context
- Prefers composition over inheritance
- Owns the auth module, consult before changes
- Available Mon-Thu, off Fridays

## Related
- [auth decision](../decisions/auth-jwt.md)
- [rate limiting concept](../concepts/rate-limiting.md)
```

After months, each person's page becomes a timeline of every conversation,
decision, and open thread. You stop losing context between meetings.

### wiki/daily/ notes (full level)

Dated session and meeting notes. Each note links to people and entities:

```markdown
---
date: 2026-04-08
type: meeting | session | standup
people: [alice-chen, bob-kumar]
---

# 2026-04-08 — Auth design review

Discussed rate limiting approach with [[people/alice-chen]].
Decided on token bucket algorithm (see [[decisions/rate-limiting.md]]).
Action: Bob to prototype by Friday.
```

The daily/ directory is the raw capture layer for work context. wiki/log.md
summarizes what happened; daily/ preserves the full notes.

### wiki/log.md

Append-only chronological record. Every entry uses a parseable header:

```
## [2026-04-05] ingest | Added React Router docs
Updated: wiki/concepts/routing.md, wiki/entities/react-router.md

## [2026-04-05] session | Implemented auth module
Decisions: chose JWT (see wiki/decisions/auth-jwt.md)
Patterns: middleware chain (see wiki/concepts/middleware.md)

## [2026-04-06] lint | Health check
Found: 2 stale, 1 contradiction, 3 orphans. Fixed stale pages.
```

Parseable with: `grep "^## \[" wiki/log.md | tail -5`

---

## Metrics and observability

### .metrics.json schema

```json
{
  "project": "project-name",
  "initialized": "2026-04-05T10:00:00Z",
  "level": "standard",
  "sessions": [
    {
      "date": "2026-04-05T10:00:00Z",
      "duration_minutes": 25,
      "what_done": "Set up authentication module",
      "stage": "building",
      "metrics": {
        "cold_start": false,
        "state_read": true,
        "wiki_pages_read": ["decisions/auth-jwt.md", "concepts/middleware.md"],
        "wiki_pages_updated": ["concepts/middleware.md"],
        "wiki_pages_created": ["entities/jsonwebtoken.md"],
        "lines_added_to_wiki": 45,
        "cross_references_added": 3,
        "git_commits": 4,
        "re_explanation_needed": false,
        "contradictions_found": 0,
        "estimated_tokens_saved": 3200
      }
    }
  ]
}
```

### Key metrics

| Metric | What it proves | Target |
|---|---|---|
| Cold start rate | Sessions start informed, not blank | < 5% |
| Wiki pages read per session | Prior knowledge is being reused | > 2 pages |
| Wiki pages updated per session | New knowledge feeds back | > 0.5 avg |
| Cross-references added | Wiki is becoming interlinked | Growing |
| Contradictions surfaced | Quality is being maintained | Tracked |
| re_explanation_needed | User doesn't repeat themselves | Rare |
| Compound ratio | Sessions contribute to the wiki | > 50% |

See `references/metrics-schema.md` for full calculation formulas.

---

## Adapting to project types

The skill detects project type and adjusts wiki structure:

| Type | Detection | Wiki adjustments |
|---|---|---|
| Web app | package.json with react/next/vue | entities/ for components, concepts/ for state patterns |
| CLI tool | bin/ directory, argparse/commander | entities/ for commands, concepts/ for arg parsing |
| Pipeline | pipeline.py, workflow files | entities/ for pipeline stages, concepts/ for data flow |
| Library | lib/ or src/ with exports | entities/ for API surface, concepts/ for deprecation |
| Research | markdown-heavy, papers, references | entities/ for papers/authors, concepts/ for topics |
| Content | newsletter, blog, wiki | entities/ for sources, concepts/ for editorial patterns |
| Work/team | multiple collaborators, meetings, Slack | people/ for teammates, daily/ for meeting notes |

### Domain examples

This pattern applies far beyond code. The wiki is a **context engineering
system** — you're building the input layer that makes every future LLM
interaction better:

- **Software teams** — meeting notes auto-linked to people and projects, design
  decisions accumulated over months, onboarding guide generated from the wiki
  instead of written from scratch (the 52K-file practitioner's use case)
- **Research** — reading papers, building a wiki with an evolving thesis,
  each paper touching entity pages for authors and concept pages for methods
- **Reading a book** — chapter summaries, character pages, theme pages, all
  interlinked. By the end you have a fan wiki built by your LLM
- **Business** — fed by Slack threads, meeting notes, customer calls. The wiki
  stays current because the LLM does the maintenance nobody wants to do
- **Competitive analysis** — entity pages per competitor, comparison pages
  auto-updated when new data arrives
- **Personal** — diary entries, people, projects, inspiration, decisions.
  The Farzapedia model: 2,500 entries compiled into 400 interlinked articles

The wiki structure adapts to any knowledge domain. Code projects use
decisions/concepts/entities/gotchas. Research projects might use
topics/papers/authors/hypotheses. Work projects add people/ and daily/.
The schema (CLAUDE.md) defines the structure for your domain.

---

## Karpathy alignment

| Karpathy's llm-wiki.md | compound-dev implementation |
|---|---|
| Three layers: raw, wiki, schema | raw/ (optional) + wiki/ + CLAUDE.md |
| "The wiki is a persistent, compounding artifact" | wiki/ with interlinked pages, cross-references |
| "You never write the wiki — the LLM maintains all of it" | Auto-checkpoint, session protocol |
| "Knowledge compiled once and kept current" | Ingest integrates across pages, contradictions flagged |
| "index.md content-oriented, log.md chronological" | wiki/index.md + wiki/log.md |
| "Lint: contradictions, stale claims, orphan pages" | Health check with wiki quality + metrics |
| "Good answers filed back into the wiki" | "File this into the wiki" command |
| "Pick what's useful, ignore what isn't" | Modular: minimal / standard / full |
| "Intentionally abstract" | Opinionated but configurable (compound-dev's choice) |

### What compound-dev adds beyond llm-wiki

| Addition | Why |
|---|---|
| .metrics.json with objective metrics | Prove compounding is happening, not just hope |
| measure.sh scorecard script | Hard evidence from git + filesystem, weekly |
| Trust layer (wiki/drafts/) | Prevent hallucinations from corrupting the wiki |
| Auto-checkpoint at session end | No manual discipline required |
| Project-type detection | Adapts wiki structure to domain |
| Multi-agent support | Teams and swarms can share a wiki |
| Installable as a skill | One command vs copy-pasting a gist |
| Health check with thresholds | Defines "healthy" with numbers, not vibes |
| overview.md synthesis page | The executive summary Karpathy implies but doesn't specify |
| people/ directory | Per-person timelines of interactions and decisions |
| daily/ capture layer | Meeting notes auto-linked to people + entities |
| Spider ingest | Start from one doc, pull in everything related |
| Context engineering framing | The wiki isn't the product — better LLM output is |

---

## Team and multi-agent usage

### For teams (multiple humans)

- Each session should `git pull` before reading state
- Wiki entries include frontmatter with `author:` field
- Conflicting entries flagged during `review drafts`
- Health check reports per-contributor compound ratios

### For multi-agent systems (OpenClaw, Hermes, swarms)

```
Agent outputs → raw capture → wiki/drafts/ → review gate → wiki/ (live)
```

- Each agent writes to `wiki/drafts/[agent-name]/`
- Supervisor agent or human reviews and promotes
- Per-agent briefings: filter wiki/ by author/tag
- Contradiction detection prevents hallucination propagation

### MCP integration (future, v2)

```
Tools:
  read_state()           → .project-state.md content
  read_wiki_index()      → wiki/index.md content
  read_page(path)        → specific wiki page
  add_draft(entry)       → write to wiki/drafts/
  promote_draft(id)      → move from drafts to live
  get_health()           → metrics + wiki quality summary
  get_briefing(role)     → filtered wiki for a specific role
```

---

## Interaction with other skills

| Skill | Integration |
|---|---|
| `visual-brief` | Health check renders as gap analysis infographic |
| `frontend-design` | Concepts from wiki/concepts/ inform component decisions |
| `skill-creator` | When patterns crystallize, suggest creating a skill |
| Any skill | compound-dev provides the memory layer; others provide capabilities |

---

## Anti-patterns

- ❌ Skipping session-start protocol (reading state + wiki index)
- ❌ Decisions without context ("chose X" — why? what alternatives?)
- ❌ Silently overwriting contradictions instead of flagging them
- ❌ Wiki pages with no cross-references (isolated knowledge doesn't compound)
- ❌ Massive single files — split at ~50 entries, create new pages
- ❌ Bypassing drafts/ in multi-agent contexts
- ❌ Never running lint (the wiki needs maintenance like any codebase)
- ❌ Treating the wiki as documentation (it's a living knowledge base, not docs)

---

## Why this works

The tedious part of maintaining a knowledge base is not the reading or
the thinking — it's the bookkeeping. Updating cross-references, keeping
summaries current, noting contradictions, maintaining consistency. Humans
abandon wikis because the maintenance burden grows faster than the value.

The LLM doesn't get bored. It doesn't forget to update a cross-reference.
It can touch 10 files in one pass. The wiki stays maintained because the
cost of maintenance is near zero.

Your job is to curate sources, direct the work, ask good questions, and
think about what it all means. The LLM's job is everything else.

---

## The four principles

Karpathy endorsed these principles via Farzapedia — a personal Wikipedia
built from 2,500 diary entries. compound-dev is designed to satisfy all four:

### 1. Explicit

The wiki is explicit and navigable. You can see exactly what the AI
knows and doesn't know. It's not implicit memory hidden inside a model —
it's files you can read, search, and manage. Every decision, pattern,
and gotcha is inspectable.

### 2. Yours

Your data stays on your local machine in your git repo. It's not in
Anthropic's cloud, not in OpenAI's system, not in any provider's database.
You own it. You can back it up, share it, delete it, move it anywhere.

### 3. File over app

The wiki is a collection of markdown files. Universal format. Any editor
can open them. Any Unix tool can process them. `grep`, `sed`, `wc`, `find`
all work natively. Obsidian renders them with graph view and backlinks.
VS Code edits them. Git versions them. No proprietary format, no lock-in.

Viewing the wiki: open the wiki/ directory in **Obsidian** for the best
experience — graph view shows the shape of your knowledge (what's connected,
what's orphaned), backlinks are clickable, and the Marp plugin renders
any slide-formatted pages. But any markdown viewer works.

### 4. BYOAI (bring your own AI)

compound-dev works with any LLM agent that reads markdown files:

| Agent | Schema file | How it works |
|---|---|---|
| Claude Code | CLAUDE.md | Native — reads at session start |
| OpenAI Codex | AGENTS.md | Copy CLAUDE.md contents to AGENTS.md |
| OpenCode / Pi | .ai/config or equivalent | Adapt schema to agent's format |
| Cursor | .cursorrules | Extract session protocol rules |
| Any agent | Read wiki/index.md | The wiki itself is agent-agnostic |

The wiki/ directory is pure markdown. ANY agent that can read files can
use it. The schema (CLAUDE.md) tells the specific agent how to navigate
the wiki — but the wiki itself doesn't care which agent reads it. You can
switch from Claude Code to Codex tomorrow and the wiki carries over.

If you're using a different agent, rename or copy CLAUDE.md to your
agent's config file format. The content is the same — project identity,
session protocol, architecture notes. Only the filename changes.

---

## Beyond code: work context and personal wikis

### Work context (the 52K-file pattern)

A staff engineer with 52,447 markdown files described this pattern:
every meeting gets a note linked to people and projects. Over months,
each person's page becomes a timeline of every conversation. Each project
folder accumulates every artifact. The graph remembers what you'd forget.

For work context, use compound-dev's full level with people/ and daily/:

```
wiki/
├── index.md
├── overview.md          ← "what this team/project is about"
├── people/              ← one file per colleague, stakeholder, manager
├── daily/               ← meeting notes, standups, 1:1s (auto-linked)
├── decisions/           ← architectural and product decisions
├── concepts/            ← recurring patterns, approaches, architectures
├── entities/            ← tools, services, repos, APIs
└── gotchas/             ← traps, outage lessons, production issues
```

The real power: when you need to write a design doc, a perf packet, a
project handoff, or an onboarding guide — point the LLM at the wiki
and it drafts from the real history, not your summary of it.

### Personal wikis (the Farzapedia pattern)

For personal knowledge, structure wiki/ by the PARA taxonomy
(Projects, Areas, Resources, Archive) or by domain:

```
wiki/
├── index.md
├── log.md
├── overview.md
├── people/              ← friends, collaborators, mentors
├── projects/            ← startups, side projects, active ideas
├── areas/               ← health, career, finances, relationships
├── interests/           ← research topics, hobbies, deep dives
├── inspiration/         ← films, books, articles, images that shaped you
└── decisions/           ← life decisions and their reasoning
```

The ingest operation works the same way: add a diary entry, meeting notes,
an article that inspired you → the LLM integrates it across relevant pages.
"I met [person] at [event] and they told me about [topic]" might touch
three wiki pages at once.

The wiki becomes a context engineering system for your life. Ask it:
"What are the themes across my recent inspirations?" and it synthesizes
across wiki/inspiration/. Ask it: "Design a landing page based on my
aesthetic preferences" and it pulls from your saved images and influences.
The output is better because it has YOUR context, not generic training data.

---

## File structure

```
compound-dev/
├── SKILL.md                ← this file (read first)
├── README.md               ← install guide + usage
├── MEASURING-IMPACT.md     ← how to prove it's working
├── measure.sh              ← weekly scorecard script (run: ./measure.sh)
└── references/
    └── metrics-schema.md    ← .metrics.json schema + calculation formulas
```
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